A group of airmen belonging to Colombo's Air Force (Sri Lanka Air Force) were detained last Wednesday at Aaladi in Mu'l'livaaykkaal after the people in the area complained of suspicious excavation activities by the three-member squad.
However, the SLAF command in Keappaa-pulavu was quick to instruct the SL police to release the SLAF personnel claiming that it was a secret military operation.
Similar incidents have also been reported at Tharmapuram in Ki'linochchi district and several locations of Vavuniyaa and Mullaiththeevu districts in the recent days.
Apart from these secret operations, there are also many operations conducted with legal permission from the SL courts.
The excavation squads that come to the localities in Vanni seem to have advance information about the possibility of LTTE arms or gold dumps from the past.
The squads, comprising of experts from the South, also deploy expensive Swiss-made gold detection equipment.